CHAPPES Bourg Wastewater Treatment Plant, Chappes, Auvergne-Rhône-Alpes

CHAPPES Bourg is a wastewater treatment plant located in the commune of Chappes, within the Riom arrondissement of Puy-de-Dôme, Auvergne-Rhône-Alpes, France. The plant serves a population of approximately 2,321 residents and is part of the region's municipal wastewater infrastructure. The facility employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 2,300 m³/day and a current discharge volume of 414.06 m³/day, the plant operates well within its capacity, ensuring effective treatment of local wastewater. The treated effluent is discharged into the local watershed, which ultimately drains into the Allier River, a major tributary of the Loire River. The Loire flows into the Atlantic Ocean, making the plant's operations important for protecting downstream aquatic ecosystems and maintaining water quality in the Loire basin.

The plant discharges into the local watershed, which feeds into the Allier River, a key tributary of the Loire River. The Loire basin supports diverse aquatic life and is an important ecological corridor. The advanced treatment helps protect water quality in this sensitive river system, which ultimately drains into the Atlantic Ocean.